Particle-in-cell (PIC) simulations of beam instabilities in gyrotrons

Extensive simulations are performed to investigate effects of electron cyclotron instabilities on the gyrotron beam quality, using two-dimensional axisymmetric particle-in-cell (PIG) codes. Both electrostatic and electromagnetic models, as well as realistic geometries of the gyrotron, are considered. It is found that a large beam density can lead to an electrostatic-instability-induced energy spread which substantially degrades the gyrotron efficiency. (C) 1997 American institute of Physics.


Published in:
Physics of Plasmas, 4, 8, 3043-3048
Year:
1997
ISSN:
1070-664X
ISBN:
1070-664X
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-09-13


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